Given cosθ = .876 and tanθ = -4.731 determine sinθ

The line containing the midpoints of the legs of right triangle abc where a(-5,5), b(1, 1), and c(3, 4) are the vertices.

Match each statement with its corresponding value for the system below: y = -2(3)x and y = 9x - 2 1. the number of points of intersection. -2 2. the x-coordinate of the solution. 1 3. the y-coordinate of the solution. 0

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0